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KUDUS AND ELANDS

315

this  is   not   so  marked  as  in   O. beatrix,  which  is  largely white

with, however, brown legs. The Gemsbok is a handsome creature
with ^rreyish tawny colour, much darker on the legs, and with a

Gazelle-like, dark, side stripe. It has received its vernacular name
on account of its supposed likeness to the Chamois (" Gemse "),
just as the Rehbok was so-called from its supposed likeness to the
Roe Deer, and the Eland to the Elk. The Beisa (O. beisa) is of
a similar tawny colour to the last., and also "with, darker stripes.

The Addax {A.ddaa?) of Xorth Africa^ Arabia and Syria, has
but one species (^4, nasomaculatus). The horns are spirally twisted.

The Tragelaphine section includes the Kudus, Elands, Nilgais,

FIG. 164.—Speke's Antelope.     FroffeZajpfcits spekii ( 9 ).     ^tS*.
and Harnessed Antelopes. They are all long-horned (when the
horns are present in both sexes), the horns being twisted; the
nose is naked with u slight median groove, and all are Ethiopian
or Oriental in range.
The genus Trayelaphus includes the Harnessed Antelopes, so
called on account of the direction of the stripes suggesting
harness. The females are hornless, and the colours of the two
sexes are different. The hoofs are long and the toes rather
unusually separable, which state of" affairs is in accord, with the